NOMA	Non-orthogonal multiple access
MCMC	Multi-cell multi-carrier
OMA	Orthogonal multiple access
FP	Fractional programming
1G	First-generation
4G	Fourth-generation
5G	Fifth-generation
SIC	Successive interference cancellation
OFDMA	Orthogonal frequency division multiple access
EE	Energy efficiency
MC	Multi-carrier
SCA	Successive convex approximation
ICI	Inter-cell interference
MOSs	Mean opinion scores
QoS	Quality of service
BS	Base station
SINR	Signal-to-interference-plus-noise ratio
MINLP	Mixed-integer non-linear programing
FTPA	Fractional transmit power allocation
FTPC	Fractional transmit power control
DGA	Double gradient algorithm
CSI	Channel state information